Chronic cerebrospinal venous insufficiency in multiple sclerosis: a highly prevalent age-dependent phenomenon. Lanzillo R, Mancini M, Liuzzi R, Di Donato O, Salvatore E, Maglio V, Vacca G, Amato L, D'Anna G, Brunetti A, et al. BMC Neurol. 2013; 13:20. Epub 2013 Feb 13. PMID: 23406210. Abstract CommentRecommendBookmarkWatch